Lithium Tin AlloyCAS #: 51404-25-2

Synonyms

 Lithium-tin, LiSn, Lithium stannide, Lithium  compd. with tin (1:1), Li7Sn3, Li5Sn2, CAS 12057-33-9, Li13Sn5, Li7Sn2, CAS 55608-41-8, Li22Sn5

Compound Formula: LiSn 

Appearance: Gray powder 

Melting Point: 344-488 °C 

Boiling Point: N/A 

Density: 6.35 g/cm3 

Solubility in H2O: N/A 

Exact Mass: 126.918199 g/mol 

Monoisotopic Mass: 126.918199 g/mol

Product Introduction: Lithium Iron Phosphate (CAS #: 51404-25-2)

Lithium Iron Phosphate (LiFePO₄), identified by CAS number 51404-25-2, is a leading cathode material in rechargeable lithium-ion batteries, celebrated for its exceptional safety, long cycle life, and environmental compatibility. With a chemical formula that reflects its composition of lithium (Li), iron (Fe), phosphorus (P), and oxygen (O), this inorganic compound has become a cornerstone of energy storage solutions, powering applications from electric vehicles to portable electronics.

Chemical & Physical Properties

LiFePO₄ exhibits a unique set of properties that make it a preferred cathode material:

Crystal Structure: Adopts an olivine structure, characterized by a stable three-dimensional framework that enables efficient lithium-ion diffusion during charge and discharge cycles.

Voltage Profile: Delivers a nominal voltage of ~3.2 V vs. Li⁺/Li, providing a balanced energy output suitable for most consumer and industrial devices.

Theoretical Capacity: Offers a theoretical specific capacity of 170 mAh/g, with practical capacities typically ranging from 140–160 mAh/g in commercial batteries.

Thermal Stability: Demonstrates excellent thermal resistance, with a decomposition temperature above 200°C, significantly reducing the risk of thermal runaway compared to other cathode materials (e.g., lithium cobalt oxide).

Electrochemical Stability: Maintains consistent performance over thousands of charge-discharge cycles, with minimal capacity fade even under high-rate conditions.

Key Applications in Energy Storage

Lithium Iron Phosphate (CAS 51404-25-2) is widely used in diverse energy storage systems, thanks to its reliability and safety:

Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs): Serves as the cathode material in EV batteries, offering long driving ranges, fast charging capabilities, and robust performance in varying temperatures. Its non-toxic composition aligns with sustainability goals for automotive manufacturers.

Portable Electronics: Powers devices such as smartphones, laptops, and power tools, where safety and long cycle life are critical. Its stable voltage output ensures consistent performance for daily use.

Stationary Energy Storage: Used in grid-scale energy storage systems and residential battery backups (e.g., solar energy storage), providing reliable energy dispatch and load balancing. Its long lifespan (10+ years) makes it cost-effective for stationary applications.

Marine and Aerospace: Deployed in marine propulsion systems and unmanned aerial vehicles (UAVs), where lightweight design and resistance to vibration and shock are essential.

Advantages Over Alternative Cathode Materials

LiFePO₄ outperforms other lithium-ion battery cathodes in several key areas:

Safety: Resists thermal runaway and does not release oxygen when overheated, eliminating the risk of fire or explosion—critical for consumer and automotive applications.

Cycle Life: Supports 2,000–5,000 charge-discharge cycles (at 100% depth of discharge), far exceeding the lifespan of lithium cobalt oxide (LiCoO₂) or nickel-cobalt-manganese (NCM) cathodes.

Cost-Effectiveness: Uses abundant and low-cost raw materials (iron, phosphorus) compared to rare metals like cobalt or nickel, reducing battery production costs.

Environmental Friendliness: Contains no toxic heavy metals, making it easier to recycle and minimizing environmental impact during disposal.

Synthesis & Quality Control

LiFePO₄ is synthesized using several methods, with strict quality control to ensure performance:

Solid-State Reaction: The most common method, involving high-temperature (600–800°C) reaction of lithium sources (e.g., Li₂CO₃), iron(II) compounds (e.g., FeC₂O₄), and phosphorus sources (e.g., NH₄H₂PO₄) under inert atmosphere.

Sol-Gel and Hydrothermal Synthesis: Produces smaller, more uniform particles with enhanced lithium-ion conductivity, suitable for high-rate applications. These methods use liquid precursors and controlled heating to form pure LiFePO₄.

Doping and Coating: Optional processes to improve conductivity—doping with elements like carbon or niobium, or coating with conductive materials (e.g., carbon nanotubes)—enhance electron transport within the cathode.

Quality testing includes X-ray diffraction (XRD) for phase purity, scanning electron microscopy (SEM) for particle size analysis, and electrochemical testing to verify capacity and cycle life.

Safety & Handling

LiFePO₄ is generally safe to handle but requires proper precautions:

Moisture Sensitivity: Absorbs minimal moisture but should be stored in dry conditions to prevent clumping.

Dust Inhalation: Avoid breathing dust; use respiratory protection during handling of powdered LiFePO₄.

Fire Risk: While inherently non-flammable, avoid contact with strong oxidizers, which may induce unwanted reactions.

Refer to the product’s Safety Data Sheet (SDS) for detailed handling guidelines.

Packaging & Availability

We offer Lithium Iron Phosphate (CAS 51404-25-2) in various forms, including powder (particle sizes 1–10 μm) and coated granules, packaged in sealed, moisture-resistant bags (1kg–25kg) or drums (50kg–500kg). Custom formulations with specific particle sizes or doping levels are available for specialized battery designs.

For technical specifications, bulk pricing, or sample requests, contact our sales team, which specializes in advanced battery materials.

Health & Safety Information 

Signal Word: N/A 

Hazard Statements: N/A 

Hazard Codes: N/A 

Risk Codes: N/A 

Safety Statements: N/A 

Transport Information: N/A

Chemical Identifiers 

Linear Formula: Li-Sn 

Pubchem CID: 57448861 

MDL Number: N/A 

EC No.: N/A 

IUPAC Name: lithium; tin 

SMILES: [Li].[Sn]

InchI Identifier: InChI=1S/Li.Sn 

InchI Key: UIDWHMKSOZZDAV-UHFFFAOYSA-N

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 735 gallon liquid totes Special package is available on request.